suggest doing sth 建议做某事 suggest that... 建议 suggest to do sth 建议做某事 表示应该的短语: should do sth 应该做某事 be supposed to do sth 应该做某事 shall do sth 应该做...
因此,要辨识to do 还是to doing,最直接的方法就是熟悉这些常见的含有介词to的搭配,这样问题就能迎刃而解了~~~ (编辑:何莹莹)